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Intellectual property rights protect innovations and their authors. This review describes the concepts of copyright and patent with their relative merits and drawbacks. An understanding of intellectual property rights is important for doctors to allow protection of their work but should not be at the expense of scientific progress.
Revision total knee arthroplasty using a second generation modular rotating hinge design was done on thirty two knees in 30 patients over an 8-year period. Twenty-nine knees in 29 patients were followed up for 4.5–11 years (mean, 58 months). Four prostheses failed and two patients had died and one patient was lost to followup. Indications for revision were recurrent sepsis (five knees), component...
A prospective clinical trial was performed to assess the suitability of a new type of sterilisable, user-friendly radiation protection glove. In a preliminary trial, we showed that the dominant hand of the primary operating orthopaedic surgeon receives the highest dose of radiation.During a 4-month period, 98 procedures were done requiring the use of an image intensifier. The doses of radiation to...
Component angles of 198 Kinemax total knee replacements were measured from standard short leg radiographs. An ideal tibio-femoral angle of between 4 and 10 o of valgus was achieved in 64.6% of patients. After an average follow-up of 6.5 years (range 4.5 to 9.5), there was no significant difference between knees in acceptable and suboptimal alignment in terms of pre- and post-operative knee...
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